RunRyder RC
 3  Topic Subscribe
WATCH
 1 page 852 views POST REPLY
Scorpion Power Scorpion Power
HelicopterKyosho Caliber/Quest Neo-Caliber series › Caliber 5 swash not staying level.
07-09-2008 01:36 AM  9 years agoPost 1
Unjun

rrNovice

Indiana

My Posts: All  Forum  Topic

Hello new to RunRyder but have found lots of great information from the members here.

I recently purchased a Caliber 5 and have added the EMS kit Im using Futaba s3151 servos.

My problem is the swash does not stay level the entire travel from negative to positive pitch. Both blades are gauged at zero pitch at center stick this is when I noticed the problem because after doing the master blade the other had 1 degree more positive and 1 degree more negative.

I tried another set of servos from a Raptor 30 just to see if one was maybe bad but does the same thing.

I set it up by the manual and have checked linkages and double checked.
Im lost any help would be great.

PM  EMAIL  GALLERY  Attn:RR
07-09-2008 01:54 AM  9 years agoPost 2
rpat

rrElite Veteran

Weirton, W. Va.

My Posts: All  Forum  Topic

try adjusting your swash settings. You will have to keep moving them until you get the swash to travel level. One of them is moving more or less that the others that is what is causing it to tilt.
Rich

PM  EMAIL  GALLERY  Attn:RR
07-09-2008 02:19 AM  9 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Set everything up at mid-collective, all trims and sticks centered. The swashplate should be level, in the middle of its up/down travel on the main rotor shaft, and you should have zero degrees pitch (using a linear, 0 to 100% pitch curve, mid stick = 50%).

Once you've got this setup, if the swashplate tilts as you move the collective up and down, it means that one or more of your servos is traveling a bit further or a bit less than the others -- you are not getting the same amount of travel out of each servo.

Assuming that you have the holes in the servo arms properly located, the way to fix uneven servo movement is to use the ENDPOINT ADJUST (ATV) setting for the individual servo channels (aileron, elevator, and Aux 1). Figure out which of the three servos is the culprit, and adjust its endpoints in the TX menu until the swashplate stays level from full negative to full positive.

The SWASH MIX menu -- the one with the numbers for aileron, elevator and pitch is used to control overall travel of the FUNCTION, not the individual servos. You get more or less cyclic and collective in this function, and adjusting any one of the three numbers affects the travel of the remaining two channels by the same amount.

The individual servo channel endpoints are used to match the individual servo travel to allow you to make the fine-tuning adjustments needed to keep the swash level from top to bottom.

Make sure that you have got the servos, the servo arms, and the control arms on the heli in the proper position with the sticks all centered, that you have the holes in the arms drilled correctly according to the manual, and that your pushrod lengths up on the head and elsewhere are the correct length. If all of these items are right, then use the endpoint/ATV setting on the TX to fix your problem.

Are you using three identical servos to control the swashplate?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR
07-09-2008 02:21 AM  9 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Oh, almost forgot one more thing to check. Make sure you've installed the balls on the various links and levers in the correct holes....

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR
07-09-2008 02:43 AM  9 years agoPost 5
Unjun

rrNovice

Indiana

My Posts: All  Forum  Topic

Im using 3 of the s3151

And I did find the problem after you post about ATV (Travel Adjust).
I had adjusted the ATV for the pitch only and I believe that was causing the travel as I set them all back to 100% with the original servos and the swash no travels level.

Another question on the pitch setup is right now at mid stick with the swash level and everything at 90 degree. Also my ATVs are all at 100%.
Im getting positve 10 and negative 7. how do you go about getting +10 and -10. Oh and I am at 0 degree at mid stick

I believe this was my problem to start with I read something that said adjust swash mix to increase travel and ATV to set the desired pitch at each end. Is this correct? And if so how do I avoid the unlevel travel do I have to adjust the ATV for each servo?

Im fairly new to helis I have a raptor 30 that I learned on but it is not EMS type so i appreciate the help.

PM  EMAIL  GALLERY  Attn:RR
07-09-2008 11:28 PM  9 years agoPost 6
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Leave the ATVs at 100%.

The SWASH MIX menu (JR/Spektrum), SWASH AFR menu (Futaba) is the menu that you use to increase or decrease the overall travel of aileron, elevator, and collective pitch functions.

This is the menu where you end up with numbers on the order of +/- 65 for the three values. This is also where you would change the sign of a number to reverse a function (for instance, if your ailerons were backwards, and you had +65 entered for the aileron number in this menu, you'd reverse the ailerons by changing the +65 to -65.... Changing the sign of a number in this menu reverses that function and will keep the swash moving level from top to bottom.

If you need more aileron throw overall, make the number bigger (keep the sign the same as it already is). If you need less aileron throw, make the number smaller (keep the sign as it already is). The same goes for the elevator overall travel and the collective pitch travel.

-----

If you set your sticks, trims, and sub-trims to neutral, the swash should end up level and in the middle of its overall travel. The servo arms and swash control levers need to be set as shown in the manual with everything centered. Make sure the holes in the servo arms are situated as shown with everything centered.

The swash should be in the middle of its overall unimpeded travel, and level. Adjust the pushrods as required to achieve this, and also make sure that you have zero degrees pitch in both blades. The short links that connect to the grips are the ones to adjust to get zero degrees.

If you do this, then you should have zero degrees with the stick centered, and have as much positive as you do negative pitch, you shouldn't end up with that +10/-7 degrees thing you've got going on.

When you get tqual amounts of +/- pitch, the collective number in the SWASH MIX/SWASH AFR menu can be adjusted to give you the overall +/- travel you're looking for.

Then go use the individual pitch curve menus to set your pitch stuff for the various flight modes.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR
WATCH
 1 page 852 views POST REPLY
Scorpion Power Scorpion Power
HelicopterKyosho Caliber/Quest Neo-Caliber series › Caliber 5 swash not staying level.
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Monday, September 25 - 5:49 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online